by Drs. Heryando Palar, Drs. Asman Riald
$12.00

by Supranto, J.
$7.00

by Erna Hartanto, S.Kom
$5.00

by Victor Situmorang, S.H
$7.00

by JH. Rapar
$11.00

by Prof. Dr. Soerjono Soekanto, S.H., M.A.
$5.00